First orbit, no history.
Was my flop bet ok?
No reads (first orbit), but I figure villain has some kind of pair - i'm probably ahead. Bet size to keep him in? play if he pushes? river plan if called?

Full Tilt No-Limit Hold'em, $0.50 BB (9 handed) Full-Tilt Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

BB ($27.25)
UTG ($54.55)
UTG+1 ($20.55)
MP1 ($9.50)
MP2 ($10)
MP3 ($34.90)
CO ($54.80)
Button ($47.50)
Hero ($49.50)

Preflop: Hero is SB with K, K.
6 folds, Button raises to $1.75, Hero raises to $5.25, 1 fold, Button calls $3.25.

Flop: ($10.75) 5, 7, J (2 players)
Hero bets $6.5, Button calls $6.50.

Turn: ($23.75) T (2 players)
[color=#CC3333]Hero bets ?